The Pristine survey – XXI. Exploring the metal-poor boundary with ESPaDoNS

• Published in: Monthly notices of the Royal Astronomical Society Vol. 522; no. 4; pp. 4815 - 4829
• Main Authors: Lombardo, Linda, Bonifacio, Piercarlo, Caffau, Elisabetta, François, Patrick, Jablonka, Pascale, Kordopatis, Georges, Martin, Nicolas, Starkenburg, Else, Yuan, Zhen, Sbordone, Luca, Sestito, Federico, Hill, Vanessa, Venn, Kim
• Format: Journal Article
• Language: English
• Published: Oxford University Press 11.05.2023; Oxford University Press (OUP): Policy P - Oxford Open Option A
• Subjects: Sciences of the Universe; stars: abundances; stars: Population II

ABSTRACT In this paper, we study high-resolution spectra of 19 stars that have metallicity estimates below –3.5 using at least two metallicity-sensitive photometric indices based on Pristine photometry. The purpose is to understand what kind of stars populate this parameter space, together with extr...